EP0190390B1 - Aus Kupfer und Keramik zusammengesetzte Farbdosierwalze - Google Patents

Aus Kupfer und Keramik zusammengesetzte Farbdosierwalze Download PDF

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Publication number
EP0190390B1
EP0190390B1 EP85108238A EP85108238A EP0190390B1 EP 0190390 B1 EP0190390 B1 EP 0190390B1 EP 85108238 A EP85108238 A EP 85108238A EP 85108238 A EP85108238 A EP 85108238A EP 0190390 B1 EP0190390 B1 EP 0190390B1
Authority
EP
European Patent Office
Prior art keywords
ink
roller
water
copper
metering roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85108238A
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English (en)
French (fr)
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EP0190390A1 (de
Inventor
Thomas Alan Fadner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boeing North American Inc
Original Assignee
Rockwell International Corp
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Filing date
Publication date
Application filed by Rockwell International Corp filed Critical Rockwell International Corp
Publication of EP0190390A1 publication Critical patent/EP0190390A1/de
Application granted granted Critical
Publication of EP0190390B1 publication Critical patent/EP0190390B1/de
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/06—Shells for rollers of printing machines for inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/04—Intermediate layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/10—Location or type of the layers in shells for rollers of printing machines characterised by inorganic compounds, e.g. pigments

Definitions

  • the dampening water in lithography is commonly supplied to the printing plate in the form of a dilute aqueous solution containing various proprietary combinations of buffering salts, gums, wetting agents, alcohols, fungicides and the like, which additives function to assist in the practical and efficient utilization of the various water supply and dampening systems combinations that are available for the practice of lithographic printing.
  • the salts and wetting agents have been found in practice to be essential if the printing press system is to produce printed copies having clean, tint-free background and sharp, clean images, without having to pay undue and impractical amounts of attention to inking and dampening system controls during operation of the press.
  • the dampening solution additives help to keep the printing plate non-image areas free of spurious specks or dots of ink that may be forced into those areas during printing.
  • all successful lithographic inks when sampled from the inking system rollers are found to contain from about one percent to about as high as 40 percent of water, more or less, within and after a few revolutions to several thousand revolutions after start-up of the printing press.
  • some of the inking rollers must unavoidably encounter surfaces containing water, such as the printing plate, from which contact a more or less gradual build up of water in the ink takes place, proceeding eventually back through the inking train, often all the way to the ink reservoir. Consequently, the presence of water in the ink during lithographic printing is a common expected occurrence.
  • An important concept in this invention is recognition that all rollers of the purposefully foreshortened inking train of rollers is simplified ink systems must be either unreactive with water or not adversely affected by water or more precisely by lithographic dampening solutions which may have been transferred to the ink or that may otherwise be encountered by the inking rollers during routine operation of the printing press. If water can react or interact to displace the ink from any part of the inking rollers' surfaces, the transport or transfer of ink to the printing plate, thence to the substrate being printed, will be interrupted in that area, resulting in a more or less severe disruption in printing ink density and/or hue over some or all portions of the intended image areas and a concomitant loss of inking control.
  • This invention provides means and material for avoiding that catastrophe.
  • every other roller of the inking train participating in the film splitting and ink transfer is made from relatively soft, rubber-like, elastically compressible materials such as natural rubber, polyurethanes, Buna N and the like, materials that are known to have a natural affinity for ink and a preference for ink over water in the lithographic ink/water environment.
  • the remaining rollers are made usually of a comparatively harder metallic material or occasionally a comparatively harder plastic or thermoplastic material such as mineral-filled nylons or hard rubber. This combination of alternating hard or incompressible and soft or compressible rollers is a standard practice in the art of printing press manufacture.
  • this oleophilic/hydrophobic behavior can be more or less predicted by measuring the degree to which droplets of ink oil and of dampening water will spontaneously spread out on the surface of the metal or polymer rubber or plastic.
  • the sessile drop technique as described in standard surface chemistry textbooks is suitable for measuring this quality.
  • oleophilic/hydrophobic roller materials will have an ink oil (Flint Ink Co.) contact angle of nearly 0° and a distilled water contact angle of about 90° or higher and these values serve to define an oleophilic/hydrophobic material.
  • Another related test is to place a thin film of ink on the material being tested, then place a droplet of dampening solution on the ink film. The longer it takes and the lesser extent to which the water solution displaces or debonds the ink, the greater is that materials' oleophilic/hydrophobic property.
  • Warner in US 4,287 827 describes a novel inking roller that is manufactured to have bimetal surfaces, for instance chromium and copper, which different roller surfaces are claimed to simultaneously carry dampening solution and ink, respectively, to the form rollers of a simplified inking system.
  • the Warner technology specifies planarity of the roller surface which is a distinct departure from the instant invention.
  • the ink-loving copper areas will carry an ink quantity corresponding to the thickness of the ink film being conveyed to it by preceding rollers in the inking system.
  • the primary metering of the ink is done separately from the bimetallic-surfaced roller or through the use of a flooded nip between the bimetal roller and a coacting resiliently-covered inking roller.
  • the instant invention involves using an independent dampening system, rather than relying on hydrophilic land areas of the inking roller as in the Warner technology to supply dampening solution to the printing plate.
  • a number of celled or recessed or anilox-type ink metering rollers have been described in trade and technical literature.
  • the American Newspaper Publishers Association (ANPA) has described in Matalia and Navi US 4,407,196 a simplified inking system for letterpress printing, which uses chromium or hardened steel or hard ceramic materials like tungsten carbide and aluminum oxide as the metering roller material of construction. These hard materials are advantageously used to minimize roller wear in a celled ink-metering roller inking system operating with a continuously-scraping coextensive doctoring blade.
  • Letterpress printing does not require purposeful and continuous addition of water to the printing system for image differentiation and therefore debonding of ink from these inherently hydrophilic rollers by water does not occur and continuous ink metering control is possible.
  • ANPA technology rollers are naturally both oleophilic and hydrophilic and will sooner or later fail by water debonding ink from the metering roller. The failure will be particularly evident at high printing speeds where build-up of water occurs more rapidly and for combinations of printing formats and ink formulations that have high water demand.
  • the instant technology avoids these sensitivities.
  • US-A-4,009,658 discloses an ink metering roll having a cylindrical metal core and a plurality of engraved cells on its outer surface.
  • a ceramic coating is applied over the entire surface of the roller by a plasma-flame technique such that the periphery and the walls of the cells are covered to define an extremely wear-resistant, long lived protective surface, the coating partially filling the receiver cells and providing a ceramic surface having outwardly open metering cells.
  • the ceramic coating is formed of finely subdivided particles of metallic oxide, typically aluminum oxide with or without additive quantities of titanium oxide to have a thickness of from about 50 to 200 pm.
  • Granger in US-A-3,587,463 discloses the use of a single celled inking roller, which operates in a mechanical sense, substantially like the inking system schematically illustrated in this disclosure as Figures 1 and 2, excepting that no provision for dampening, therefore for lithographic printing was disclosed nor anticipated. Granger's system will not function in lithographic printing for reasons similar to that already presented in the Matalia and Navi case.
  • This invention relates to method, materials and apparatus for metering ink in modern, high-speed lithographic printing press systems, wherein means are provided to simplify the inking system and to simplify the degree of operator control or attention required during operation of the printing press.
  • the amount of ink reaching the printing plate is controlled primarily by the dimensions of depressions or cells in the surface of a metering roller and by a coextensive scraping or doctor blade that continuously removes virtually all the ink from the celled metering roller except that carried in the cells or recesses.
  • the ink metering roller is composed of a steel core of suitable length and diameter, engraved or otherwise manufactured to have accurately- dimensioned and positioned cells or recesses in its face surface and lands or bearing regions which comprise all the rollers face surface excepting that occupied by cells, which cells together with a scraping doctor blade serve to precisely meter a required volume of ink.
  • the metering roller core is plated with a thin layer of copper than over coated with a thin, hard, wear resistant ceramic coating.
  • a primary objective of this invention is to provide a simple, inexpensive manufacturing method and roller made therefrom that insures the economically practical operation of a simple system for continuously conveying ink to the printing plate in lithographic printing press systems.
  • Another primary objective of this invention is to provide a roller with a celled metering surface that continuously measures and transfers the correct, predetermined quantity of ink to the printing plate and thereby to the substrate being printed, without having to rely on difficult-to- contaol slip-nips formed by contact of smooth inking rollers driven at different surface speeds from one another.
  • Another object of this invention is to provide a metering roller surface that is sufficiently hard and wear-resistant to allow long celled-roller lifetimes despite the scraping, wearing action of a doctor blade substantially in contact with it.
  • Still another objective of this invention is to provide automatic uniform metering of precisely controlled amounts of ink across the press width without necessity for operator interference as for instance in the setting of inking keys common to the current art of lithographic printing.
  • a further objective is to advantageously control the amount of detrimental starvation ghosting typical of simplified inking systems by continuously overfilling precisely-formed recesses or cells in a metering roller surface with ink during each revolution of said roller, then immediately and continuously scraping away all of the ink picked up by said roller, excepting that retained in said cells or recesses, thereby presenting the same precisely-metered amounts of ink to the printing plate form rollers each and every revolution of the printing press system.
  • Yet another object of this invention is to provide material and method for assuring that aqueous lithographic dampening solutions and their admixtures with lithographic inks do not interfere with the capability of a celled ink-metering roller to continuously and repeatedly pick-up and transfer precise quantities of ink.
  • a still further object of this invention is to provide an improved inking roll having a composite structure that combines high degrees of ink attraction and ink retention with a long wearing surface.
  • an inker configuration suited to the practice of this invention in offset lithography consists of an ink-reservoir or ink-fountain 10 and/or a driven ink-fountain roller 11, a press-driven oleophilic/hydrophobic engraved or cellular roller 12, a reverse-angle metering blade or doctor-blade 13, and friction driven form rollers 14 and 15, which supply ink to a printing plate 16 mounted on plate-cylinder 20 and this in turn supplies ink to for example a paper web 21 being fed through the printing nip formed by the blanket cylinder 25 and the impression cylinder 26. All of the rollers in Figures 1 and 2 are configured substantially parallel axially.
  • the celled metering roller 12 of Figures 1, 2, 3, 4 and 5 is the novel element of this invention. It consists of mechanically engraved or otherwise- formed, patterned cells or depressions in the face surface of the roller, the volume and frequency of the depressions being selected based on the volume of ink needed to meet required printed optical density specifications.
  • the nature of this special roller is made clear elsewhere in this disclosure and additionally in part, in Figure 3, 4 and 5 which depict suitable alternative patterns and cross-sections.
  • the celled metering roller will be rotated by a suitable driving mechanism at the same speed as the printing cylinders 20, 25 and 26 of Figure 1, typically from about 500 to 2000 revolutions per minute.
  • the doctor blade 13 depicted schematically in Figure 1 and in perspective in Figure 2 is typically made of flexible spring steel about 152 to 254 pm mils thick, with a chamfered edge to better facilitate precise ink removal. Mounting of the blade relative to the special metering roller is critical to successful practice of this invention but does not constitute a claim herein since doctor blade mounting techniques suitable for the practice of this invention are well known.
  • the doctor blade or the celled metering roller may be vibrated axially during operation to distribute the wear patterns and achieve additional ink film uniformity.
  • rollers 14 and 15 of Figure 1 are preferred in inking systems to help reduce ghosting in the printed images.
  • These rollers will generally be a resiliantly-covered composite of some kind, typically having a Shore A hardness value between about 22 and 28.
  • the form rollers preferably are mutually independently adjustable to the printing plate cylinder 20 and to the special metering roller 12 of this invention, and pivotally mounted about the metering roller and fitted with manual or automatic trip-off mechanisms as is well known in the art of printing press design.
  • the form rollers are typically and advantageously friction driven by the plate cylinder 20 and/or the metering roller 12.
  • hard, wear-resistant materials available for manufacture of an inking roller are naturally hydrophilic, rather than hydrophobic.
  • the commonly-used hard metals such as chromium or nickel and hardened iron alloys such as various grades of steel, as well as readily- available ceramic materials such as aluminum oxide and tungsten carbide prefer to have a layer of water rather than a layer of ink on their surfaces when both liquids are present. This preference is enhanced in situations where portions of the fresh material surfaces are continuously being exposed because of the gradual wearing action of a doctor blade. It is also enhanced if that fresh, chemically-reactive metal surface tends to form hydrophilic oxides in the presence of atmospheric oxygen and water from the lithographic dampening solution.
  • Oxidizing corrosion to form iron oxide Fe 2 0 3 in the case of steel compounds is a typical example.
  • various grades of steel, chromium and its oxides, nickel and its oxides will readily operate as the uppermost surface in an ink-metering roller for printing systems not requiring water, such as letterpress printing, these same surfaces will become debonded of ink when sufficient dampening water penetrates to the roller surface, as for instance, in the practice of lithographic printing.
  • the action of a doctor blade on a rotating ink-metering roller more-or-less rapidly exposes fresh metering roller surface material which prefers water.
  • hydrophilic, water-loving, surfaces are also oleophilic, oil-loving in the absence of water, such as when fresh, unused, water-free lithographic ink is applied to a steel or ceramic roller.
  • the ink exhibits good adhesion and wetting to the roller.
  • a combination of roller nip pressures and increasing water content in the ink force water through the ink layer to the roller surface thereby debonding the ink from these naturally hydrophilic surfaces, the ink layer thereby becoming more-or-less permanently replaced by the more stable water layer.
  • a 5.1 to 7.6 pm copper layer may be electrolytically applied to a mechanically-engraved AISI 1018 or 1020 steel roller, then in a subsequent operation applied about 25.4 pm of ceramic layer.
  • the copper may be applied by well-known electroless coating techniques or by powder coating methods.
  • the copper layer thickness is held to the minimum consistent with overall coverage of the roller.
  • the copper provides a hydrophobic/oleophilic anchor for ink that is forced through the porous ceramic layer during printing operations. Without this copper basecoating, water that is present in the ink would eventually displace the ink from the ceramic and steel surfaces, destroying the roller's metering capability.
  • the ceramic coating of this invention is advantageously applied by well-known flame-spraying techniques as particles of from about 12.7x10- 4 to 127x10 -4 mm in diameter, which particles fuse permanently to themselves and to the copper layer. Particles significantly smaller than the indicated values are difficult to flame-spray in a controlled manner and are expected to result in insufficient porosity of the deposited coating. Larger ceramic particles, such as about 25,4 pm in diameter or larger, tend to be insufficiently bonded and having a fretting or chipping response to scraping doctor-blade action, therefore, wear more rapidly than one might predict from the inherent hardness of the ceramic.
  • a 914.4 mm face length 112.3 mm diameter, AISI 1020 steel roller was mechanically engraved by Pamarco Inc., Roselle, NJ, using a standard 250 lines/25.4 mm truncated-quadrangular engraving tool. Engraved-cell dimensions were 90 pm width at the surface, 43 ⁇ m at the base and 25 ⁇ m deep; land widths were 10 pm.
  • the engraved roller was then electrolytically coated by Pamarco with a calculated 0.2 to 0.3 pm layer of copper, using a standard cyanide-bath procedure.
  • the copper-plated roller was then grit- blasted with 30 pm average-diameter aluminum oxide powder to roughen the surface and enhance subsequent adhesion.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)

Claims (7)

1. Dosierwalze (12) für die Verwendung in der Lithographie, enthaltend:
eine Basiswalze mit geeignetem Durchmesser und geeigneter Länge mit einer eingeprägten Außenfläche,
dadurch gekennzeichnet, daß sie ferner
eine im wesentlichen kontinuierliche Schicht aus einem oleophilen/hydrophoben Material, das fest mit der eingeprägten Außenfläche der Basiswalze zur Bildung einer im wesentlichen ununterbrochenen Schicht über dieser Fläche verbunden ist, und
eine äußere mikroporöse Keramikschicht, die zur Bildung der Außenschicht des Materials auf der Basiswalze mit der oleophilen/hydrophoben Schicht verbunden ist, aufweist.
2. Farbdosierwalze nach Anspruch 1, bei welcher das oleophile/hydrophobe Material Kupfer ist.
3. Farbdosierwalze nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die mikroporöse Keramikschicht aus Aluminiumoxid (AI203) besteht.
4. Farbdosierwalze nach Anspruch 3, dadurch gekennzeichnet, daß die Dicke der Keramikschicht zwischen etwa 5 bis 100 um liegt.
5. Farbdosierwalze nach Anspruch 2, dadurch gekennzeichnet, daß die Dicke der Kupferschicht im Bereich von etwa 2,5 bis 12,7 µm liegt.
6. Farbdosierwalze nach Anspruch 3, dadurch gekennzeichnet, daß das Aluminiumoxid in Form von Partikeln aufgebracht wird, deren Durchmesser im Bereich von etwa 12,7x10-4 bis 127x10-4 mm liegt.
7. Farbdosierwalze für die Verwendung in der Lithographie mit mehreren zusammenwirkenden Einfärbewalzen (11, 12, 14, 15), von denen wenigstens eine eine Farbdosierwalze gemäß Anspruch 1 ist.
EP85108238A 1985-02-04 1985-07-03 Aus Kupfer und Keramik zusammengesetzte Farbdosierwalze Expired EP0190390B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/698,201 US4601242A (en) 1985-02-04 1985-02-04 Copper and ceramic composite ink metering roller
US698201 1985-02-04

Publications (2)

Publication Number Publication Date
EP0190390A1 EP0190390A1 (de) 1986-08-13
EP0190390B1 true EP0190390B1 (de) 1989-05-24

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ID=24804293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108238A Expired EP0190390B1 (de) 1985-02-04 1985-07-03 Aus Kupfer und Keramik zusammengesetzte Farbdosierwalze

Country Status (6)

Country Link
US (1) US4601242A (de)
EP (1) EP0190390B1 (de)
JP (1) JPS61181646A (de)
AU (1) AU578105B2 (de)
CA (1) CA1239830A (de)
DE (2) DE190390T1 (de)

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DE4408615A1 (de) * 1994-03-15 1995-09-21 Roland Man Druckmasch Druckwerk für eine Druckmaschine
DE19645934A1 (de) * 1996-11-07 1998-05-14 Roland Man Druckmasch Rasterwalze innerhalb eines Auftragswerkes einer Rotationsdruckmaschine

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US4567827A (en) * 1985-02-04 1986-02-04 Rockwell International Corporation Copper and nickel layered ink metering roller
DE3615141A1 (de) * 1986-05-03 1987-11-05 Zecher Gmbh Kurt Farbuebertragungswalze mit oxidschicht
DE3713027A1 (de) * 1987-04-16 1988-11-17 Frankenthal Ag Albert Rasterwalze fuer ein offsetfarbwerk, sowie verfahren zur herstellung einer derartigen rasterwalze
JP2635046B2 (ja) * 1987-05-27 1997-07-30 株式会社 東京機械製作所 平版印刷機のインキ装置用ローラーおよび平版印刷機のインキ装置用ローラーの製造方法
EP0303866B1 (de) * 1987-08-18 1994-09-21 Rockwell International Corporation Farbroller für Rotationsdruckmaschinen
AU610914B2 (en) * 1987-11-13 1991-05-30 Goss International Asia-Pacific, Inc. Copper coated anodized aluminum ink metering roller
US4862799A (en) * 1987-11-13 1989-09-05 Rockwell International Corporation Copper coated anodized aluminum ink metering roller
GB8729615D0 (en) * 1987-12-18 1988-02-03 Fellows S Improved rollers
DE3744131A1 (de) * 1987-12-24 1989-07-06 Frankenthal Ag Albert Rasterwalze fuer ein offsetfarbwerk sowie verfahren zur herstellung einer derartigen rasterwalze
GB8801537D0 (en) * 1988-01-23 1988-02-24 Crown Wallcoverings Ltd Engraved printing rolls
DE68915340T2 (de) * 1988-06-16 1994-08-25 Rockwell International Corp Eingefärbte Feuchtwalze für Steindruck.
JPH082643B2 (ja) * 1988-09-30 1996-01-17 株式会社東京機械製作所 印刷機のインキングローラーおよび印刷機のインキングローラーの製造方法
ATE122288T1 (de) * 1988-10-14 1995-05-15 Tokyo Kikai Seisakusho Ltd Farbzuführvorrichtung für eine druckmaschine.
JP2616901B2 (ja) * 1988-11-01 1997-06-04 株式会社 東京機械製作所 多色刷用輪転印刷機
CA2006227C (en) * 1989-04-27 1995-07-18 Goss Graphic Systems, Inc. Hydrophobic and oleophilic microporous inking rollers
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US5850788A (en) * 1992-01-14 1998-12-22 Maschinenfabrik Wifag Metering strip
DE4308993A1 (de) * 1993-03-19 1994-09-22 Koenig & Bauer Ag Walze für ein Farbwerk einer Druckmaschine und Verfahren zur Herstellung der Walze
DE9305742U1 (de) * 1993-04-16 1993-06-17 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Feuchtwerk für Offsetdruckmaschinen
DE4323506A1 (de) * 1993-07-14 1995-01-19 Koenig & Bauer Ag Keramisch beschichtete Farbgeberwalze
USD378623S (en) 1994-06-03 1997-03-25 American Safety Razor Company Razor handle
FR2748422B1 (fr) * 1996-05-10 1998-06-12 Rollin Sa Systeme de transfert d'un produit liquide plus ou moins visqueux sur un support, procede de fabrication d'une telle surface et blanchet d'impression offset realise avec cette surface
DE10039279A1 (de) * 1999-09-09 2001-03-15 Heidelberger Druckmasch Ag Walze für Druckmaschinen
MXPA02004222A (es) 1999-10-29 2002-10-17 Isle Coat Ltd Cilindro grabado y metodo para fabricar el mismo.
JP3400764B2 (ja) 2000-01-27 2003-04-28 株式会社東京機械製作所 インキング装置
US20040003734A1 (en) * 2002-07-02 2004-01-08 Shively J. Thomas Method and apparatus for printing using an electrically conductive ink
GB0229191D0 (en) * 2002-12-14 2003-01-22 Plastic Logic Ltd Embossing of polymer devices
US20080240794A1 (en) * 2007-03-26 2008-10-02 Research Laboratories Of Australia Pty Ltd Printing machine incorporating plastic metering roller
US20140349013A1 (en) * 2013-05-23 2014-11-27 Uni-Pixel Displays, Inc. Method of manufacturing a low volume transfer anilox roll for high-resolution flexographic printing
CN110202916A (zh) * 2019-06-26 2019-09-06 云南卓印科技有限公司 一种平版印刷计量辊及其制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4408615A1 (de) * 1994-03-15 1995-09-21 Roland Man Druckmasch Druckwerk für eine Druckmaschine
DE19645934A1 (de) * 1996-11-07 1998-05-14 Roland Man Druckmasch Rasterwalze innerhalb eines Auftragswerkes einer Rotationsdruckmaschine

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CA1239830A (en) 1988-08-02
US4601242A (en) 1986-07-22
EP0190390A1 (de) 1986-08-13
DE190390T1 (de) 1986-11-27
DE3570394D1 (en) 1989-06-29
JPH0431306B2 (de) 1992-05-26
JPS61181646A (ja) 1986-08-14
AU578105B2 (en) 1988-10-13
AU4423385A (en) 1986-08-07

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